/**
 * @author qiao / https://github.com/qiao
 * @author mrdoob / http://mrdoob.com
 * @author alteredq / http://alteredqualia.com/
 * @author WestLangley / http://github.com/WestLangley
 * @author erich666 / http://erichaines.com
 * @author ScieCode / http://github.com/sciecode
 */

import {
  EventDispatcher,
  MOUSE,
  Quaternion,
  Spherical,
  TOUCH,
  Vector2,
  Vector3,
} from 'three';

// This set of controls performs orbiting, dollying (zooming), and panning.
// Unlike TrackballControls, it maintains the "up" direction object.up (+Y by default).
//
//    Orbit - left mouse / touch: one-finger move
//    Zoom - middle mouse, or mousewheel / touch: two-finger spread or squish
//    Pan - right mouse, or left mouse + ctrl/meta/shiftKey, or arrow keys / touch: two-finger move

var OrbitControls = function ( object, domElement ) {

  if ( domElement === undefined ) console.warn( 'THREE.OrbitControls: The second parameter "domElement" is now mandatory.' );
  if ( domElement === document ) console.error( 'THREE.OrbitControls: "document" should not be used as the target "domElement". Please use "renderer.domElement" instead.' );

  this.object = object;
  this.domElement = domElement;

  // Set to false to disable this control
  this.enabled = true;

  // "target" sets the location of focus, where the object orbits around
  this.target = new Vector3();

  // How far you can dolly in and out ( PerspectiveCamera only )
  this.minDistance = 0;
  this.maxDistance = Infinity;

  // How far you can zoom in and out ( OrthographicCamera only )
  this.minZoom = 0;
  this.maxZoom = Infinity;

  // How far you can orbit vertically, upper and lower limits.
  // Range is 0 to Math.PI radians.
  this.minPolarAngle = 0; // radians
  this.maxPolarAngle = Math.PI; // radians

  // How far you can orbit horizontally, upper and lower limits.
  // If set, must be a sub-interval of the interval [ - Math.PI, Math.PI ].
  this.minAzimuthAngle = - Infinity; // radians
  this.maxAzimuthAngle = Infinity; // radians

  // Set to true to enable damping (inertia)
  // If damping is enabled, you must call controls.update() in your animation loop
  this.enableDamping = false;
  this.dampingFactor = 0.05;

  // This option actually enables dollying in and out; left as "zoom" for backwards compatibility.
  // Set to false to disable zooming
  this.enableZoom = true;
  this.zoomSpeed = 1.0;

  // Set to false to disable rotating
  this.enableRotate = true;
  this.rotateSpeed = 1.0;

  // Set to false to disable panning
  this.enablePan = true;
  this.panSpeed = 1.0;
  this.screenSpacePanning = false; // if true, pan in screen-space
  this.keyPanSpeed = 7.0;	// pixels moved per arrow key push

  // Set to true to automatically rotate around the target
  // If auto-rotate is enabled, you must call controls.update() in your animation loop
  this.autoRotate = false;
  this.autoRotateSpeed = 2.0; // 30 seconds per round when fps is 60

  // Set to false to disable use of the keys
  this.enableKeys = true;

  // The four arrow keys
  this.keys = { LEFT: 37, UP: 38, RIGHT: 39, BOTTOM: 40 };

  // Mouse buttons
  this.mouseButtons = { LEFT: MOUSE.ROTATE, MIDDLE: MOUSE.DOLLY, RIGHT: MOUSE.PAN };

  // Touch fingers
  this.touches = { ONE: TOUCH.ROTATE, TWO: TOUCH.DOLLY_PAN };

  // for reset
  this.target0 = this.target.clone();
  this.position0 = this.object.position.clone();
  this.zoom0 = this.object.zoom;

  //
  // public methods
  //

  this.getPolarAngle = function () {

    return spherical.phi;

  };

  this.getAzimuthalAngle = function () {

    return spherical.theta;

  };

  this.saveState = function () {

    scope.target0.copy( scope.target );
    scope.position0.copy( scope.object.position );
    scope.zoom0 = scope.object.zoom;

  };

  this.reset = function () {

    scope.target.copy( scope.target0 );
    scope.object.position.copy( scope.position0 );
    scope.object.zoom = scope.zoom0;

    scope.object.updateProjectionMatrix();
    scope.dispatchEvent( changeEvent );

    scope.update();

    state = STATE.NONE;

  };

  // this method is exposed, but perhaps it would be better if we can make it private...
  this.update = function () {

    var offset = new Vector3();

    // so camera.up is the orbit axis
    var quat = new Quaternion().setFromUnitVectors( object.up, new Vector3( 0, 1, 0 ) );
    var quatInverse = quat.clone().inverse();

    var lastPosition = new Vector3();
    var lastQuaternion = new Quaternion();

    return function update() {

      var position = scope.object.position;

      offset.copy( position ).sub( scope.target );

      // rotate offset to "y-axis-is-up" space
      offset.applyQuaternion( quat );

      // angle from z-axis around y-axis
      spherical.setFromVector3( offset );

      if ( scope.autoRotate && state === STATE.NONE ) {

        rotateLeft( getAutoRotationAngle() );

      }

      if ( scope.enableDamping ) {

        spherical.theta += sphericalDelta.theta * scope.dampingFactor;
        spherical.phi += sphericalDelta.phi * scope.dampingFactor;

      } else {

        spherical.theta += sphericalDelta.theta;
        spherical.phi += sphericalDelta.phi;

      }

      // restrict theta to be between desired limits
      spherical.theta = Math.max( scope.minAzimuthAngle, Math.min( scope.maxAzimuthAngle, spherical.theta ) );

      // restrict phi to be between desired limits
      spherical.phi = Math.max( scope.minPolarAngle, Math.min( scope.maxPolarAngle, spherical.phi ) );

      spherical.makeSafe();


      spherical.radius *= scale;

      // restrict radius to be between desired limits
      spherical.radius = Math.max( scope.minDistance, Math.min( scope.maxDistance, spherical.radius ) );

      // move target to panned location

      if ( scope.enableDamping === true ) {

        scope.target.addScaledVector( panOffset, scope.dampingFactor );

      } else {

        scope.target.add( panOffset );

      }

      offset.setFromSpherical( spherical );

      // rotate offset back to "camera-up-vector-is-up" space
      offset.applyQuaternion( quatInverse );

      position.copy( scope.target ).add( offset );

      scope.object.lookAt( scope.target );

      if ( scope.enableDamping === true ) {

        sphericalDelta.theta *= ( 1 - scope.dampingFactor );
        sphericalDelta.phi *= ( 1 - scope.dampingFactor );

        panOffset.multiplyScalar( 1 - scope.dampingFactor );

      } else {

        sphericalDelta.set( 0, 0, 0 );

        panOffset.set( 0, 0, 0 );

      }

      scale = 1;

      // update condition is:
      // min(camera displacement, camera rotation in radians)^2 > EPS
      // using small-angle approximation cos(x/2) = 1 - x^2 / 8

      if ( zoomChanged ||
        lastPosition.distanceToSquared( scope.object.position ) > EPS ||
        8 * ( 1 - lastQuaternion.dot( scope.object.quaternion ) ) > EPS ) {

        scope.dispatchEvent( changeEvent );

        lastPosition.copy( scope.object.position );
        lastQuaternion.copy( scope.object.quaternion );
        zoomChanged = false;

        return true;

      }

      return false;

    };

  }();

  this.dispose = function () {

    scope.domElement.removeEventListener( 'contextmenu', onContextMenu, false );
    scope.domElement.removeEventListener( 'mousedown', onMouseDown, false );
    scope.domElement.removeEventListener( 'wheel', onMouseWheel, false );

    scope.domElement.removeEventListener( 'touchstart', onTouchStart, false );
    scope.domElement.removeEventListener( 'touchend', onTouchEnd, false );
    scope.domElement.removeEventListener( 'touchmove', onTouchMove, false );

    document.removeEventListener( 'mousemove', onMouseMove, false );
    document.removeEventListener( 'mouseup', onMouseUp, false );

    scope.domElement.removeEventListener( 'keydown', onKeyDown, false );

    //scope.dispatchEvent( { type: 'dispose' } ); // should this be added here?

  };

  //
  // internals
  //

  var scope = this;

  var changeEvent = { type: 'change' };
  var startEvent = { type: 'start' };
  var endEvent = { type: 'end' };

  var STATE = {
    NONE: - 1,
    ROTATE: 0,
    DOLLY: 1,
    PAN: 2,
    TOUCH_ROTATE: 3,
    TOUCH_PAN: 4,
    TOUCH_DOLLY_PAN: 5,
    TOUCH_DOLLY_ROTATE: 6
  };

  var state = STATE.NONE;

  var EPS = 0.000001;

  // current position in spherical coordinates
  var spherical = new Spherical();
  var sphericalDelta = new Spherical();

  var scale = 1;
  var panOffset = new Vector3();
  var zoomChanged = false;

  var rotateStart = new Vector2();
  var rotateEnd = new Vector2();
  var rotateDelta = new Vector2();

  var panStart = new Vector2();
  var panEnd = new Vector2();
  var panDelta = new Vector2();

  var dollyStart = new Vector2();
  var dollyEnd = new Vector2();
  var dollyDelta = new Vector2();

  function getAutoRotationAngle() {

    return 2 * Math.PI / 60 / 60 * scope.autoRotateSpeed;

  }

  function getZoomScale() {

    return Math.pow( 0.95, scope.zoomSpeed );

  }

  function rotateLeft( angle ) {

    sphericalDelta.theta -= angle;

  }

  function rotateUp( angle ) {

    sphericalDelta.phi -= angle;

  }

  var panLeft = function () {

    var v = new Vector3();

    return function panLeft( distance, objectMatrix ) {

      v.setFromMatrixColumn( objectMatrix, 0 ); // get X column of objectMatrix
      v.multiplyScalar( - distance );

      panOffset.add( v );

    };

  }();

  var panUp = function () {

    var v = new Vector3();

    return function panUp( distance, objectMatrix ) {

      if ( scope.screenSpacePanning === true ) {

        v.setFromMatrixColumn( objectMatrix, 1 );

      } else {

        v.setFromMatrixColumn( objectMatrix, 0 );
        v.crossVectors( scope.object.up, v );

      }

      v.multiplyScalar( distance );

      panOffset.add( v );

    };

  }();

  // deltaX and deltaY are in pixels; right and down are positive
  var pan = function () {

    var offset = new Vector3();

    return function pan( deltaX, deltaY ) {

      var element = scope.domElement;

      if ( scope.object.isPerspectiveCamera ) {

        // perspective
        var position = scope.object.position;
        offset.copy( position ).sub( scope.target );
        var targetDistance = offset.length();

        // half of the fov is center to top of screen
        targetDistance *= Math.tan( ( scope.object.fov / 2 ) * Math.PI / 180.0 );

        // we use only clientHeight here so aspect ratio does not distort speed
        panLeft( 2 * deltaX * targetDistance / element.clientHeight, scope.object.matrix );
        panUp( 2 * deltaY * targetDistance / element.clientHeight, scope.object.matrix );

      } else if ( scope.object.isOrthographicCamera ) {

        // orthographic
        panLeft( deltaX * ( scope.object.right - scope.object.left ) / scope.object.zoom / element.clientWidth, scope.object.matrix );
        panUp( deltaY * ( scope.object.top - scope.object.bottom ) / scope.object.zoom / element.clientHeight, scope.object.matrix );

      } else {

        // camera neither orthographic nor perspective
        console.warn( 'WARNING: OrbitControls.js encountered an unknown camera type - pan disabled.' );
        scope.enablePan = false;

      }

    };

  }();

  function dollyOut( dollyScale ) {

    if ( scope.object.isPerspectiveCamera ) {

      scale /= dollyScale;

    } else if ( scope.object.isOrthographicCamera ) {

      scope.object.zoom = Math.max( scope.minZoom, Math.min( scope.maxZoom, scope.object.zoom * dollyScale ) );
      scope.object.updateProjectionMatrix();
      zoomChanged = true;

    } else {

      console.warn( 'WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled.' );
      scope.enableZoom = false;

    }

  }

  function dollyIn( dollyScale ) {

    if ( scope.object.isPerspectiveCamera ) {

      scale *= dollyScale;

    } else if ( scope.object.isOrthographicCamera ) {

      scope.object.zoom = Math.max( scope.minZoom, Math.min( scope.maxZoom, scope.object.zoom / dollyScale ) );
      scope.object.updateProjectionMatrix();
      zoomChanged = true;

    } else {

      console.warn( 'WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled.' );
      scope.enableZoom = false;

    }

  }

  //
  // event callbacks - update the object state
  //

  function handleMouseDownRotate( event ) {

    rotateStart.set( event.clientX, event.clientY );

  }

  function handleMouseDownDolly( event ) {

    dollyStart.set( event.clientX, event.clientY );

  }

  function handleMouseDownPan( event ) {

    panStart.set( event.clientX, event.clientY );

  }

  function handleMouseMoveRotate( event ) {

    rotateEnd.set( event.clientX, event.clientY );

    rotateDelta.subVectors( rotateEnd, rotateStart ).multiplyScalar( scope.rotateSpeed );

    var element = scope.domElement;

    rotateLeft( 2 * Math.PI * rotateDelta.x / element.clientHeight ); // yes, height

    rotateUp( 2 * Math.PI * rotateDelta.y / element.clientHeight );

    rotateStart.copy( rotateEnd );

    scope.update();

  }

  function handleMouseMoveDolly( event ) {

    dollyEnd.set( event.clientX, event.clientY );

    dollyDelta.subVectors( dollyEnd, dollyStart );

    if ( dollyDelta.y > 0 ) {

      dollyOut( getZoomScale() );

    } else if ( dollyDelta.y < 0 ) {

      dollyIn( getZoomScale() );

    }

    dollyStart.copy( dollyEnd );

    scope.update();

  }

  function handleMouseMovePan( event ) {

    panEnd.set( event.clientX, event.clientY );

    panDelta.subVectors( panEnd, panStart ).multiplyScalar( scope.panSpeed );

    pan( panDelta.x, panDelta.y );

    panStart.copy( panEnd );

    scope.update();

  }

  // function handleMouseUp( /*event*/ ) {
  //
  //   // no-op
  //
  // }

  function handleMouseWheel( event ) {

    if ( event.deltaY < 0 ) {

      dollyIn( getZoomScale() );

    } else if ( event.deltaY > 0 ) {

      dollyOut( getZoomScale() );

    }

    scope.update();

  }

  function handleKeyDown( event ) {

    var needsUpdate = false;

    switch ( event.keyCode ) {

      case scope.keys.UP:
        pan( 0, scope.keyPanSpeed );
        needsUpdate = true;
        break;

      case scope.keys.BOTTOM:
        pan( 0, - scope.keyPanSpeed );
        needsUpdate = true;
        break;

      case scope.keys.LEFT:
        pan( scope.keyPanSpeed, 0 );
        needsUpdate = true;
        break;

      case scope.keys.RIGHT:
        pan( - scope.keyPanSpeed, 0 );
        needsUpdate = true;
        break;

    }

    if ( needsUpdate ) {

      // prevent the browser from scrolling on cursor keys
      event.preventDefault();

      scope.update();

    }


  }

  function handleTouchStartRotate( event ) {

    if ( event.touches.length == 1 ) {

      rotateStart.set( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY );

    } else {

      var x = 0.5 * ( event.touches[ 0 ].pageX + event.touches[ 1 ].pageX );
      var y = 0.5 * ( event.touches[ 0 ].pageY + event.touches[ 1 ].pageY );

      rotateStart.set( x, y );

    }

  }

  function handleTouchStartPan( event ) {

    if ( event.touches.length == 1 ) {

      panStart.set( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY );

    } else {

      var x = 0.5 * ( event.touches[ 0 ].pageX + event.touches[ 1 ].pageX );
      var y = 0.5 * ( event.touches[ 0 ].pageY + event.touches[ 1 ].pageY );

      panStart.set( x, y );

    }

  }

  function handleTouchStartDolly( event ) {

    var dx = event.touches[ 0 ].pageX - event.touches[ 1 ].pageX;
    var dy = event.touches[ 0 ].pageY - event.touches[ 1 ].pageY;

    var distance = Math.sqrt( dx * dx + dy * dy );

    dollyStart.set( 0, distance );

  }

  function handleTouchStartDollyPan( event ) {

    if ( scope.enableZoom ) handleTouchStartDolly( event );

    if ( scope.enablePan ) handleTouchStartPan( event );

  }

  function handleTouchStartDollyRotate( event ) {

    if ( scope.enableZoom ) handleTouchStartDolly( event );

    if ( scope.enableRotate ) handleTouchStartRotate( event );

  }

  function handleTouchMoveRotate( event ) {

    if ( event.touches.length == 1 ) {

      rotateEnd.set( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY );

    } else {

      var x = 0.5 * ( event.touches[ 0 ].pageX + event.touches[ 1 ].pageX );
      var y = 0.5 * ( event.touches[ 0 ].pageY + event.touches[ 1 ].pageY );

      rotateEnd.set( x, y );

    }

    rotateDelta.subVectors( rotateEnd, rotateStart ).multiplyScalar( scope.rotateSpeed );

    var element = scope.domElement;

    rotateLeft( 2 * Math.PI * rotateDelta.x / element.clientHeight ); // yes, height

    rotateUp( 2 * Math.PI * rotateDelta.y / element.clientHeight );

    rotateStart.copy( rotateEnd );

  }

  function handleTouchMovePan( event ) {

    if ( event.touches.length == 1 ) {

      panEnd.set( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY );

    } else {

      var x = 0.5 * ( event.touches[ 0 ].pageX + event.touches[ 1 ].pageX );
      var y = 0.5 * ( event.touches[ 0 ].pageY + event.touches[ 1 ].pageY );

      panEnd.set( x, y );

    }

    panDelta.subVectors( panEnd, panStart ).multiplyScalar( scope.panSpeed );

    pan( panDelta.x, panDelta.y );

    panStart.copy( panEnd );

  }

  function handleTouchMoveDolly( event ) {

    var dx = event.touches[ 0 ].pageX - event.touches[ 1 ].pageX;
    var dy = event.touches[ 0 ].pageY - event.touches[ 1 ].pageY;

    var distance = Math.sqrt( dx * dx + dy * dy );

    dollyEnd.set( 0, distance );

    dollyDelta.set( 0, Math.pow( dollyEnd.y / dollyStart.y, scope.zoomSpeed ) );

    dollyOut( dollyDelta.y );

    dollyStart.copy( dollyEnd );

  }

  function handleTouchMoveDollyPan( event ) {

    if ( scope.enableZoom ) handleTouchMoveDolly( event );

    if ( scope.enablePan ) handleTouchMovePan( event );

  }

  function handleTouchMoveDollyRotate( event ) {

    if ( scope.enableZoom ) handleTouchMoveDolly( event );

    if ( scope.enableRotate ) handleTouchMoveRotate( event );

  }

  // function handleTouchEnd( /*event*/ ) {
  //
  //   // no-op
  //
  // }

  //
  // event handlers - FSM: listen for events and reset state
  //

  function onMouseDown( event ) {

    if ( scope.enabled === false ) return;

    // Prevent the browser from scrolling.
    event.preventDefault();

    // Manually set the focus since calling preventDefault above
    // prevents the browser from setting it automatically.

    scope.domElement.focus ? scope.domElement.focus() : window.focus();

    var mouseAction;

    switch ( event.button ) {

      case 0:

        mouseAction = scope.mouseButtons.LEFT;
        break;

      case 1:

        mouseAction = scope.mouseButtons.MIDDLE;
        break;

      case 2:

        mouseAction = scope.mouseButtons.RIGHT;
        break;

      default:

        mouseAction = - 1;

    }

    switch ( mouseAction ) {

      case MOUSE.DOLLY:

        if ( scope.enableZoom === false ) return;

        handleMouseDownDolly( event );

        state = STATE.DOLLY;

        break;

      case MOUSE.ROTATE:

        if ( event.ctrlKey || event.metaKey || event.shiftKey ) {

          if ( scope.enablePan === false ) return;

          handleMouseDownPan( event );

          state = STATE.PAN;

        } else {

          if ( scope.enableRotate === false ) return;

          handleMouseDownRotate( event );

          state = STATE.ROTATE;

        }

        break;

      case MOUSE.PAN:

        if ( event.ctrlKey || event.metaKey || event.shiftKey ) {

          if ( scope.enableRotate === false ) return;

          handleMouseDownRotate( event );

          state = STATE.ROTATE;

        } else {

          if ( scope.enablePan === false ) return;

          handleMouseDownPan( event );

          state = STATE.PAN;

        }

        break;

      default:

        state = STATE.NONE;

    }

    if ( state !== STATE.NONE ) {

      document.addEventListener( 'mousemove', onMouseMove, false );
      document.addEventListener( 'mouseup', onMouseUp, false );

      scope.dispatchEvent( startEvent );

    }

  }

  function onMouseMove( event ) {

    if ( scope.enabled === false ) return;

    event.preventDefault();

    switch ( state ) {

      case STATE.ROTATE:

        if ( scope.enableRotate === false ) return;

        handleMouseMoveRotate( event );

        break;

      case STATE.DOLLY:

        if ( scope.enableZoom === false ) return;

        handleMouseMoveDolly( event );

        break;

      case STATE.PAN:

        if ( scope.enablePan === false ) return;

        handleMouseMovePan( event );

        break;

    }

  }

  function onMouseUp( event ) {

    if ( scope.enabled === false ) return;

    // handleMouseUp( event );

    document.removeEventListener( 'mousemove', onMouseMove, false );
    document.removeEventListener( 'mouseup', onMouseUp, false );

    scope.dispatchEvent( endEvent );

    state = STATE.NONE;

  }

  function onMouseWheel( event ) {

    if ( scope.enabled === false || scope.enableZoom === false || ( state !== STATE.NONE && state !== STATE.ROTATE ) ) return;

    event.preventDefault();
    event.stopPropagation();

    scope.dispatchEvent( startEvent );

    handleMouseWheel( event );

    scope.dispatchEvent( endEvent );

  }

  function onKeyDown( event ) {

    if ( scope.enabled === false || scope.enableKeys === false || scope.enablePan === false ) return;

    handleKeyDown( event );

  }

  function onTouchStart( event ) {

    if ( scope.enabled === false ) return;

    event.preventDefault(); // prevent scrolling

    switch ( event.touches.length ) {

      case 1:

        switch ( scope.touches.ONE ) {

          case TOUCH.ROTATE:

            if ( scope.enableRotate === false ) return;

            handleTouchStartRotate( event );

            state = STATE.TOUCH_ROTATE;

            break;

          case TOUCH.PAN:

            if ( scope.enablePan === false ) return;

            handleTouchStartPan( event );

            state = STATE.TOUCH_PAN;

            break;

          default:

            state = STATE.NONE;

        }

        break;

      case 2:

        switch ( scope.touches.TWO ) {

          case TOUCH.DOLLY_PAN:

            if ( scope.enableZoom === false && scope.enablePan === false ) return;

            handleTouchStartDollyPan( event );

            state = STATE.TOUCH_DOLLY_PAN;

            break;

          case TOUCH.DOLLY_ROTATE:

            if ( scope.enableZoom === false && scope.enableRotate === false ) return;

            handleTouchStartDollyRotate( event );

            state = STATE.TOUCH_DOLLY_ROTATE;

            break;

          default:

            state = STATE.NONE;

        }

        break;

      default:

        state = STATE.NONE;

    }

    if ( state !== STATE.NONE ) {

      scope.dispatchEvent( startEvent );

    }

  }

  function onTouchMove( event ) {

    if ( scope.enabled === false ) return;

    event.preventDefault(); // prevent scrolling
    event.stopPropagation();

    switch ( state ) {

      case STATE.TOUCH_ROTATE:

        if ( scope.enableRotate === false ) return;

        handleTouchMoveRotate( event );

        scope.update();

        break;

      case STATE.TOUCH_PAN:

        if ( scope.enablePan === false ) return;

        handleTouchMovePan( event );

        scope.update();

        break;

      case STATE.TOUCH_DOLLY_PAN:

        if ( scope.enableZoom === false && scope.enablePan === false ) return;

        handleTouchMoveDollyPan( event );

        scope.update();

        break;

      case STATE.TOUCH_DOLLY_ROTATE:

        if ( scope.enableZoom === false && scope.enableRotate === false ) return;

        handleTouchMoveDollyRotate( event );

        scope.update();

        break;

      default:

        state = STATE.NONE;

    }

  }

  function onTouchEnd( event ) {

    if ( scope.enabled === false ) return;

    // handleTouchEnd( event );

    scope.dispatchEvent( endEvent );

    state = STATE.NONE;

  }

  function onContextMenu( event ) {

    if ( scope.enabled === false ) return;

    event.preventDefault();

  }

  //

  scope.domElement.addEventListener( 'contextmenu', onContextMenu, false );

  scope.domElement.addEventListener( 'mousedown', onMouseDown, false );
  scope.domElement.addEventListener( 'wheel', onMouseWheel, false );

  scope.domElement.addEventListener( 'touchstart', onTouchStart, false );
  scope.domElement.addEventListener( 'touchend', onTouchEnd, false );
  scope.domElement.addEventListener( 'touchmove', onTouchMove, false );

  scope.domElement.addEventListener( 'keydown', onKeyDown, false );

  // make sure element can receive keys.

  if ( scope.domElement.tabIndex === - 1 ) {

    scope.domElement.tabIndex = 0;

  }

  // force an update at start

  this.update();

};

OrbitControls.prototype = Object.create( EventDispatcher.prototype );
OrbitControls.prototype.constructor = OrbitControls;


// This set of controls performs orbiting, dollying (zooming), and panning.
// Unlike TrackballControls, it maintains the "up" direction object.up (+Y by default).
// This is very similar to OrbitControls, another set of touch behavior
//
//    Orbit - right mouse, or left mouse + ctrl/meta/shiftKey / touch: two-finger rotate
//    Zoom - middle mouse, or mousewheel / touch: two-finger spread or squish
//    Pan - left mouse, or arrow keys / touch: one-finger move

var MapControls = function ( object, domElement ) {

  OrbitControls.call( this, object, domElement );

  this.mouseButtons.LEFT = MOUSE.PAN;
  this.mouseButtons.RIGHT = MOUSE.ROTATE;

  this.touches.ONE = TOUCH.PAN;
  this.touches.TWO = TOUCH.DOLLY_ROTATE;

};

MapControls.prototype = Object.create( EventDispatcher.prototype );
MapControls.prototype.constructor = MapControls;

export { OrbitControls, MapControls };
export default () => {};
